Public Class UnitTest
    
    Public Function defaultByValArgs(ByVal intFirstVal As Integer, Optional ByVal intSecondVal As Integer = 10) As Integer
        Dim result As Integer
        Return intFirstVal + intSecondVal
    End Function

    Public Function defaultByRefArgs(Optional ByRef intVal As String = "Cordys India") As String
        Return intVal
    End Function

End Class